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Investment Securities (Amortized Cost and Estimated Fair Values of Securities) (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Pledged available for sale securities    
Amortized Cost $ 187,862 $ 159,593
Restricted securities 20,411 20,253
Pledged held to maturity securities    
Amortized Cost 469,750 481,280
Estimated Fair Value 421,428 424,734
Collateral Pledged    
Pledged available for sale securities    
Amortized Cost 75,003 76,280
Restricted securities 67,805 67,926
Pledged held to maturity securities    
Amortized Cost 214,583 197,474
Estimated Fair Value $ 191,952 $ 173,248